Cloudanix VulnDB

CVE-2026-46416

Medium · 6.3

CVSS

6.3

EPSS

0.5%

Published

May 27, 2026

CISA due date

—

The record

Microsoft UFO open-source framework for intelligent automation across devices and platforms. In 3.0.1-4-ge2626659, Microsoft UFO creates one shared UFOWebSocketHandler instance and reuses it for multiple authenticated WebSocket connections. The handler stores per-connection protocol objects in mutable instance fields. Each new WebSocket connection overwrites those fields. Later, message handlers send responses through the shared fields instead of through protocol objects bound to the originating connection. As a result, the most recently connected authenticated client can receive protocol responses that belong to another authenticated client.

Affected packages

Ecosystem Package Introduced Fixed

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